i spent a month in mount zion national park volunteering, photographing, and converting analog images to digital. so i come back from my trip lastnight head strait to my tank and see that everything has gone to hell. i had a friend do my feeding and supposed water changes and top offs. looking to the damage i have hair algae thats out of control, most of lost my zoa frags, and have diatoms. first things first i need to get the water back in check turn the skimmer back on and do a water change. but what the best way to kill off the hair algae? does